A display device includes a circuit substrate, a light emitting diode, an encapsulation layer, a color conversion layer and a first optical structure. The light emitting diode is located on the circuit substrate. The encapsulation layer covers the light emitting diode. The color conversion layer overlaps the light emitting diode. The first optical structure overlaps the color conversion layer and is located between the encapsulation layer and the color conversion layer. The first optical structure includes first gaps periodically arranged with a first pitch on a first direction. The width of each first gap in the first direction is 1 micrometer to 10 micrometers. A refractive index of a material of the first optical structure is greater than a refractive index of a material of the encapsulation layer.
Legal claims defining the scope of protection, as filed with the USPTO.
3. The display device of claim 2, wherein a width of the second gap on the first direction is 1 micrometer to 10 micrometers.
4. The display device of claim 2, wherein the width of the first gaps on the first direction is greater than or equal to the width of the second gap on the first direction.
5. The display device of claim 2, wherein the encapsulate layer extends between the black matrix and the second optical structure.
6. The display device of claim 1, wherein the material of the first optical structure is a transparent material.
7. The display device of claim 1, wherein the first optical structure comprises first optical units arranged periodically, and the first gaps are located between adjacent ones of the first optical units, first surfaces of the first optical units facing the color conversion layer are flat surfaces, and second surfaces of the first optical units facing the circuit substrate are flat surfaces.
8. The display device of claim 1, wherein the encapsulate layer fills into the first gaps.
9. The display device of claim 8, wherein the encapsulate layer is in contact with the color conversion layer through the first gaps.
12. The display device of claim 1, wherein the color conversion layer fills into the first gaps.
13. The display device of claim 1, wherein light emitted by the light emitting diode sequentially transmits through the encapsulate layer, the first gaps of the first optical structure and the color conversion layer.
16. The display device of claim 15, wherein the encapsulate layer extends between the black matrix and the second optical structure.
17. The display device of claim 15, wherein the covering layer fills into the first gaps, and the encapsulate layer fills into the second gaps.
18. The display device of claim 17, wherein the covering layer is in contact with the color conversion layer through the first gaps.
19. The display device of claim 14, wherein the first optical structure comprises first optical units arranged periodically, and the first gaps are located between adjacent ones of the first optical units, first surfaces of the first optical units facing the color conversion layer are flat surfaces, and second surfaces of the first optical units facing the circuit substrate are flat surfaces.
20. The display device of claim 14, wherein light emitted by the light emitting diode sequentially transmits through the encapsulate layer, the first gaps of the first optical structure and the color conversion layer.
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August 2, 2023
August 6, 2024
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